When youre testing yourself on an unforgiving mountainside you need a jacket thats as robust as you are. Guaranteed to keep you dry in driving rain, GORE-TEX® is a world leader in waterproof technology and its easy to see why. Not only has it a revolutionary 3 layer waterproof fabric, its breathable too so when the heat is on, youre cool and calm. And did we mention the fully adjustable, helmet compatible hood? The cuffs and hem adjust too for extra weather protection. Seems like this great fitting jacket is a force to be reckoned with!